102154216 has 8 divisors (see below), whose sum is σ = 191539170. Its totient is φ = 51077104.

The previous prime is 102154133. The next prime is 102154223. The reversal of 102154216 is 612451201.

It can be written as a sum of positive squares in only one way, i.e., 100922116 + 1232100 = 10046^2 + 1110^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6384631 + ... + 6384646.

Almost surely, 2^102154216 is an apocalyptic number.

It is an amenable number.

102154216 is a deficient number, since it is larger than the sum of its proper divisors (89384954).

102154216 is a wasteful number, since it uses less digits than its factorization.

102154216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12769283 (or 12769279 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 102154216 is about 10107.1368844001. The cubic root of 102154216 is about 467.4682274155.

The spelling of 102154216 in words is "one hundred two million, one hundred fifty-four thousand, two hundred sixteen".